Early pterosaurs were clumsy flyers

Pterosaurs are some of the largest animals ever to have flown, and dominated the skies for more than 150 million years. But new research suggests that the earliest winged reptiles were ungainly aviators. Researchers used the fossilized pterosaur remains to estimate their wing size and body mass, and combined this with information about the metabolic rates of birds to calculate what their flight might have looked like.